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Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 FEBS+Open+Bio 2018 ; 8 (4): 664-70 Nephropedia Template TP
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Obesity?associated glomerular inflammation increases albuminuria without renal histological changes #MMPMID29632818
Mima A; Yasuzawa T; King GL; Ueshima S
FEBS Open Bio 2018[Apr]; 8 (4): 664-70 PMID29632818show ga
Obesity is one of risk factors for chronic kidney disease (CKD), but the precise mechanism involved is unclear. This study characterizes the effect of obesity?induced glomerular inflammation, oxidative stress, and albuminuria in obese rats. Glomerular samples were collected from fatty (ZF) and lean (ZL) Zucker rats. After 2 months of feeding, body weight and albuminuria were significantly increased in ZF rats when compared to ZL rats. Expression of the inflammatory markers TNF?? and CCR2 was significantly increased in the glomeruli of ZF rats. However, expression of IL?6 mRNA was not increased. Analysis of renal pathology showed no glomerular expansion. As inflammatory and oxidative stress markers are associated with NF??B, we evaluated whether NF??B activation was increased in the glomeruli of mice on a high?fat diet. Immunohistochemistry showed increased NF??B activation in the glomeruli when transgenic mice overexpressing an NF??B?dependent enhanced green fluorescent protein were fed with a high?fat diet. These results suggest that obesity of only 2 months duration can cause albuminuria, due to increased inflammation or oxidative stress, but may not be long enough to develop renal pathological changes.